The Way to Tie Building Roof Systems Into One Another
Building an addition requires linking two roofs, whether the space is a wing of even a carport or living spaces. There are lots of roof fashions, but the most frequent are gable, which slopes from a peak to two sides; hip, which slopes to common eaves on either side, and discard or pent, which slopes into only one direction. Relations that are different are required by each roof design, but there are similarities. The finish rafters or supports to the roof link to framing elements of the old roof with some ledger or nailing board.
Flat to Slope
Connect a flat roof to a sloped or pitched roof with a ledger board. Remove siding from the house where the roof will attach to expose rafters or other framing of the roof. Nail a ledger board, normally a 2-by-6 or 2-by-8-inch, to the old roof briefly with 16d framing nails and a hammer. Establish it flat with a level.
Bore holes with a power drill and 1/2-inch piece through the ledger into the rafters or other hardy frame elements. Drive 1/2-inch lag bolts, with a screw line and a bolt head, with a ratchet wrench through the ledger into the roof framing. Remove the temporary claws after the ledger is secure.
Adapt the connection of the roof to the style of the inclusion; some horizontal roofs have rafters out of a ledger to supports in the end of the roof, others have big external beams with rafters set vertical across them, many others have walls that tie into the house and support the flat roof. Use metal rafter hangers to link addition framing.
Slope to Slope
Tie a fresh gable or hip roof to an present gable or hip roof with”valley” rafters, which perform the same function as ledgers. Strip the roofing from the roof in the connection point to expose the current rafters. Brace rafters on the other hand to complementary rafters on the opposite side of this roof with horizontal boards nailed between both rafters.
Cut 2 rafters with a circular saw to the pitch of this inclusion roof and nail them across the rafters over the roof; they form an upside down V, together with the point at the top of the addition roof. Install rafters or trusses for the roof on the inclusion walls along with other supports, together with framing nails. Put trusses or rafters . Remove old roof rafters within the valley rafters with a reciprocal saw or abandon them set up, based on the use of the attic space.
Set the last truss or pair of rafters for the new roof in the outside edge of the current roof. Quantify between that truss or rafter and the valley rafters with a tape measure and cut short rafters to tie the new and old rafters together; use a speed square to detect the proper angles and cut the short rafters. Fasten a ridge board on the roof, if there is one, to the ridge board on the present roof, even if it’s one.
